Question

Which type of immunity is acquired through the administration of a vaccine?

• A. Natural active immunity
• B. Natural passive immunity
• C. Artificial active immunity
• D. Artificial passive immunity

Hint:

Vaccination = \textbf{Artificial + Active}. Body produces its own antibodies after exposure.

Answer 1

The Correct Option is C

Step 1: Understanding the Concept:
Immunity is classified as Natural (via environmental exposure) or Artificial (via medical intervention), and as Active (body produces antibodies) or Passive (body receives ready-made antibodies).
Step 2: Detailed Explanation:
- Active Immunity means the individual's immune system is stimulated to produce its own antibodies and memory cells.
- Artificial means it was induced by a medical procedure like vaccination.
When a vaccine (antigen) is injected, it triggers an immune response without causing the disease.
This is known as Artificial Active Immunity.
- Artificial Passive would be injecting pre-formed antibodies (like Anti-rabies serum).
- Natural Active is getting an infection naturally.
- Natural Passive is antibodies from mother to fetus.
Step 3: Final Answer:
Vaccination provides Artificial Active Immunity.